User Igor Khavkine

23 votes

2 answers

2k views

Uniqueness of compactification of an end of a manifold

asked Nov 23, 2011 at 14:47

17 votes

2 answers

1k views

Postnikov's algebraic reconstruction of cohomology from homotopy invariants

asked Mar 8, 2014 at 16:25

16 votes

3 answers

1k views

Analog of Newlander–Nirenberg theorem for real analytic manifolds

asked Jun 26, 2014 at 16:22

16 votes

5 answers

3k views

Measure theory treatment geared toward the Riesz representation theorem

asked Aug 21, 2012 at 9:09

13 votes

3 answers

4k views

PDEs, boundary conditions, and unique solvability

asked Jun 24, 2010 at 23:00

11 votes

3 answers

3k views

Characterization of inverse differential operators

asked Apr 3, 2012 at 0:38

11 votes

1 answer

943 views

Who first proved that a vanishing Riemann tensor is sufficient for the existence of Euclidean coordinates?

asked Mar 17, 2017 at 15:39

11 votes

2 answers

261 views

Fundamental group under Gelfand duality

asked Nov 20, 2019 at 12:34

10 votes

0 answers

231 views

Progress since Luna's theorem on smooth invariants

asked Aug 28, 2017 at 0:42

10 votes

1 answer

505 views

Linearization instability and singular points of algebraic varieties

asked Feb 23, 2013 at 23:32

9 votes

1 answer

2k views

Sheaf cohomology with compact supports (and Verdier duality?)

asked Sep 6, 2013 at 21:56

8 votes

2 answers

1k views

Methods for determining domains of influence

asked Feb 17, 2012 at 17:30

8 votes

2 answers

1k views

Singular points of algebraic varieties and parametrization by Puiseux series

asked Sep 7, 2014 at 23:49

7 votes

0 answers

333 views

Finitely generated projective modules over the algebra of sections of the Clifford bundle

asked Mar 25, 2015 at 0:36

7 votes

1 answer

371 views

Separating closed $SO(p,q)$ orbits by invariant polynomials

asked Aug 26, 2017 at 20:07

7 votes

1 answer

727 views

More on completion/compactification of open manifolds

asked Dec 13, 2011 at 17:36

6 votes

0 answers

320 views

Terminology for notion dual to "support"

asked Oct 15, 2012 at 18:47

6 votes

2 answers

319 views

Lie powers of a graded vector space and Klyachko's theorem

asked Jan 14, 2021 at 18:42

5 votes

0 answers

541 views

Identities satisfied by the image of the Young symmetrizer

asked Sep 9, 2016 at 16:51

5 votes

1 answer

353 views

Smooth and $GL(n)$-equivariant implies algebraic?

asked Sep 29, 2014 at 19:51

5 votes

0 answers

483 views

"Euler system" in Christodoulou's The Action Principle and PDEs

asked Nov 22, 2011 at 11:40

5 votes

1 answer

791 views

Self-adjoint extension of locally defined differential operators

asked Feb 17, 2010 at 15:58

4 votes

2 answers

467 views

Lens-shaped vs globally hyperbolic

asked Sep 28, 2011 at 15:26

4 votes

2 answers

386 views

Name for bundle of algebraic varieties over a smooth manifold

asked Jan 12, 2011 at 10:18

4 votes

1 answer

761 views

Hahn-Banach restricted to a pre-dual

asked May 25, 2013 at 21:02

4 votes

2 answers

526 views

Existence of a countable linear combination with positive coefficients

asked Jul 24, 2015 at 13:48

3 votes

1 answer

324 views

Integrating the resolvent of a self-adjoint operator across a continuous part of the spectrum

asked Feb 18, 2016 at 18:08

3 votes

2 answers

414 views

Obstructions to the existence of a flat connection on a vector bundle

asked Sep 28, 2023 at 0:26

3 votes

1 answer

548 views

A Schwartz kernel type theorem for Sobolev spaces

asked Mar 19, 2018 at 18:00

3 votes

0 answers

484 views

Existence of $n$-connected topological groups with $m$-dimensional action extending that of $GL(m)$ on $\mathbb{R}^m$

asked Dec 6, 2013 at 21:02

Stack Exchange Network

33 Questions

Uniqueness of compactification of an end of a manifold

Postnikov's algebraic reconstruction of cohomology from homotopy invariants

Analog of Newlander–Nirenberg theorem for real analytic manifolds

Measure theory treatment geared toward the Riesz representation theorem

PDEs, boundary conditions, and unique solvability

Characterization of inverse differential operators

Who first proved that a vanishing Riemann tensor is sufficient for the existence of Euclidean coordinates?

Fundamental group under Gelfand duality

Progress since Luna's theorem on smooth invariants

Linearization instability and singular points of algebraic varieties

Sheaf cohomology with compact supports (and Verdier duality?)

Methods for determining domains of influence

Singular points of algebraic varieties and parametrization by Puiseux series

Finitely generated projective modules over the algebra of sections of the Clifford bundle

Separating closed $SO(p,q)$ orbits by invariant polynomials

More on completion/compactification of open manifolds

Terminology for notion dual to "support"

Lie powers of a graded vector space and Klyachko's theorem

Identities satisfied by the image of the Young symmetrizer

Smooth and $GL(n)$-equivariant implies algebraic?

"Euler system" in Christodoulou's The Action Principle and PDEs

Self-adjoint extension of locally defined differential operators

Lens-shaped vs globally hyperbolic

Name for bundle of algebraic varieties over a smooth manifold

Hahn-Banach restricted to a pre-dual

Existence of a countable linear combination with positive coefficients

Integrating the resolvent of a self-adjoint operator across a continuous part of the spectrum

Obstructions to the existence of a flat connection on a vector bundle

A Schwartz kernel type theorem for Sobolev spaces

Existence of $n$-connected topological groups with $m$-dimensional action extending that of $GL(m)$ on $\mathbb{R}^m$